摘要:
输入任意(用户,成绩)序列,可以获得成绩从高到低或从低到高的排列,相同成绩都按先录入排列在前的规则处理。 try: while 1: n = int(input()) #行数 flag = int(input()) #升序1 降序0 grade = [] for i in range(n): s = 阅读全文
摘要:
错误: delete from student where username in ( select username from student group by username having count(username)>1) and id not in (select min(id) as 阅读全文